CHEMICAL REACTION ENGINEERING QUIZ

Which of the following is a controlling factor in very fast heterogeneous reaction?

Heat and mass transfer effects

Composition of reactant

Pressure

Temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Sometimes, batch process is preferred over continuous process, when the product

Both A & B

Quality & yield can not be achieved in continuous processes, because of long residence time

Sales demand is fluctuating

Neither A nor B

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YOUR ANSWER : ?

Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction.

Zero order

Consecutive

None of these

Third order

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YOUR ANSWER : ?

Reverse reaction in a chemical equilibrium is favoured by the

Removal of one of the products regularly

Increase in the concentration of oneof the products

None of these

Increase in the concentration of one of the reactants

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YOUR ANSWER : ?

Which of the following factors control the deactivation of a porous catalyst pellet?

Form of surface attack by poison

Pore diffusion

All of these

Decay reactions

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YOUR ANSWER : ?

The rate constant of a chemical reaction decreases by decreasing the

Pressure

Concentration of reactants

Temperature

Duration of reaction

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YOUR ANSWER : ?

Given, 3H₂ + CO = CH₄ + H₂O, KP = 101.84 and, 4H₂ + CO₂ = CH₄ + 2H₂O, KP = 101.17the KP for the reaction CO + H₂O = CO₂ + H₂ is

L00.67

10-3.01

103.01

10-0.67

TRUE ANSWER : ?
YOUR ANSWER : ?

Promoter is added to the catalyst to improve its

Surface area

Sensitivity

None of these

Porosity

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For a zero order chemical reaction, the

All of these

Plot of products concentration with time is a straight line through the origin

Half life period is directly proportion to the initial concentration of the reac-tants

Products concentration increases linerarly with time

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Pick out the wrong statement pertaining to space velocity of flow reactors.

The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour

The unit of space velocity is (time)⁻¹

The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor

None of these

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